Related questions
Question
Transcribed Image Text:A 0.20 kg ball is dropped at a speed of 16 m/s from a 22 m cliff. What is its potential energy at the instant it was launched (assume U(D)-0(?
33J
261
691
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps
Knowledge Booster
Similar questions
- 9. AV R 6121W Higgins A.Nouvel onglet R 2634 W catalpa.. Physics 235-Spring 2023 Chapter 7 Worksheet The cable of a crane is lifting a 750 kg girder. The girder increases its speed from 0.25 m/s to 0.75 m/s in a distance of 3.5 m. a. How much work is done by gravity? b. How much work is done by tension?arrow_forward7. The work done by gravity in lowering a 3.0 [kg] box from an initial height to the ground is 15 [J]. What is the gravitational potential energy at its initial position if the potential energy at the ground is zero? A. zero B. -15.0 [J] C. +15.0 [J] D. +30.0 [J]arrow_forwardHow much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the ground to a height of 6 m? (g = 10 m/s?) A. 300J B. 500 J C. 3,000) D. 5,000J E. zero Jarrow_forward
- 11. Can a normal force on an object ever do work on the object? Explain.arrow_forwardA cheetah can accelerate from rest to 7.4 m/s (about 18 m/h) in 1.8 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg?a) 1400 W. b) 1600 W. c) 1800 W. d) 2500 W. e) 2800 W.arrow_forward5arrow_forward
- A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg? a) 1300 W. b) 1500 W. c) 1900 W. d) 2200 W. e) 2600 W.arrow_forward3arrow_forward4.) Worker 1 lifts a mass M1=30kg straight up a distance of 4 meters in 9 seconds. Worker 2 lifts a mass M2 = 15kg straight up a distance of 3 meters is 2 seconds. Determine: a.) Which worker did more work? b.) Which worker developed more power?arrow_forward
- Tom used 100N of force to drag a 10kgs of rocks up a 15 degree hill. There is an initial velocity of 1.5 m/s. The coefficient of kinetic friction is 0.40 and the rocks is dragged 7.5m. Find the work done in gravity? The work done by friction? The work done by Tom? The change in KE? The speed of the rocks after it is dragged 7.5m?arrow_forward10arrow_forwardA cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power does the cheetah generate during the acceleration phase of its motion if its mass is 51 kg? a) 1200 W. b) 1300 W. c) 1600 W. d) 2100 W. e) 2500 W.arrow_forward
arrow_back_ios
arrow_forward_ios